(19)

(11)

EP 1 490 534 A2

(12)

(88) Date of publication A3: 12.02.2004 (43) Date of publication: 29.12.2004 Bulletin 2004/53 (21) Application number: 03745380.0 (22) Date of filing: 31.03.2003

(51) International Patent Classification (IPC)7: C25C 1/00 (86) International application number: PCT/IB2003/001238 (87) International publication number: WO 2003/083176 (09.10.2003 Gazette 2003/41)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 30.03.2002 US 112673 (71) Applicants: MOLTECH Invent S.A. 1520 Luxembourg (LU) De Nora, Vittorio Nassau (BS)	(72) Inventors: DE NORA, Vittorio Nassau (BS) DURUZ, Jean-Jacques CH-1204 Genève (CH) (74) Representative: Cronin, Brian  c/o Moltech S.A.,Quai du Mont-Blanc 21 1201 Geneva 1201 Geneva (CH)